4 # Functions for interacting with the initscripts table in the database
6 # Tony Mack <tmack@cs.princeton.edu>
7 # Copyright (C) 2006 The Trustees of Princeton University
11 from types import StringTypes
12 from PLC.Faults import *
13 from PLC.Parameter import Parameter
14 from PLC.Filter import Filter
15 from PLC.Table import Row, Table
17 class InitScript(Row):
19 Representation of a row in the initscripts table. To use,
20 instantiate with a dict of values.
23 table_name = 'initscripts'
24 primary_key = 'initscript_id'
27 'initscript_id': Parameter(int, "Initscript identifier"),
28 'name': Parameter(str, "Initscript name", max = 254),
29 'enabled': Parameter(bool, "Initscript is active"),
30 'script': Parameter(str, "Initscript"),
33 def validate_name(self, name):
35 validates the script name
38 conflicts = InitScripts(self.api, [name])
39 for initscript in conflicts:
40 if 'initscript_id' not in self or self['initscript_id'] != initscript['initscript_id']:
41 raise PLCInvalidArgument, "Initscript name already in use"
46 class InitScripts(Table):
48 Representation of the initscripts table in the database.
51 def __init__(self, api, initscript_filter = None, columns = None):
52 Table.__init__(self, api, InitScript, columns)
54 sql = "SELECT %s FROM initscripts WHERE True" % \
55 ", ".join(self.columns)
57 if initscript_filter is not None:
58 if isinstance(initscript_filter, (list, tuple, set)):
59 # Separate the list into integers and strings
60 ints = filter(lambda x: isinstance(x, (int, long)), initscript_filter)
61 strs = filter(lambda x: isinstance(x, StringTypes), initscript_filter)
62 initscript_filter = Filter(InitScript.fields, {'initscript_id': ints, 'name': strs })
63 sql += " AND (%s) %s" % initscript_filter.sql(api, "OR")
64 elif isinstance(initscript_filter, dict):
65 initscript_filter = Filter(InitScript.fields, initscript_filter)
66 sql += " AND (%s) %s" % initscript_filter.sql(api, "AND")